Closed systems are well-defined and profitable, but only for those who control them. Open systems are chaotic and profitable, but only for those who understand them well and move faster than everyone else. Closed systems grow quickly while open systems evolve more slowly, so placing your bets on open requires the optimism, will, and means to think long term. Fortunately, at Google we have all three of these.
…Open will win. It will win on the Internet and will then cascade across many walks of life: The future of government is transparency. The future of commerce is information symmetry. The future of culture is freedom. The future of science and medicine is collaboration. The future of entertainment is participation. Each of these futures depends on an open Internet.

From “The meaning of open” posted on the Google Policy Blog on December 21st 2009 by Jonathan Rosenberg, Senior Vice President for Product Management.